Seat for equalizing bars



Sept. 10, 1929. l. A. RANDEL SEAT FOR EQUALIZING BARS Filed Oct. 3, 1928 Param-a sept. 1o, 1929.

UNITED j STAT/ss.

iIV'AR A. RANDEL, OE CHICAGO, ILLINOIS, ASSIGNOR TO RALPH BROWN, OF CHICAGO,

iLLiNois.

ysEA'r Fon nQUALIzING Bans.

Application inea october 192s. serial No. 310,144."

The invention relates to trucks for railway i cars and more particularly to seats for equalizer bars.

The principal object of theinventionis the 5 provision of interchangeable equalizer bar seats having newqandimproved means for maintaining the application of the fore and aft pressure'on the pedestals at a substantially constant distance from the base of the 10 pedestals.

Another objectof the invention is'tlie pro-rL vision of a new land improved seat for equalizer bars that will permity a limiteduniversal movement between said bars and seats.r y A further object of the invention is the provision of an aqualizerbar seat that is simf ple in construction, cheap to manufacture, i

easily applied, yefficient in operation, and that isnot likely to become broken or deranged `Fig. 4L is atop plan view of one ofthe equalizer bar seats; and

Fig. 5 is a top plan view of one of the in section and lparts broken away.

Referring now to the drawing, the refery ence character 10 designates a. railway car truck of the six wheel type having the usual i0 for convenience will be termed, the front, rear and intermediate pedestals 12, 18`and 14, respectively. There is a pedestal at each end oiE each journal lQOX Se@ Fig 5' Eachpedesi e ,tai `Comp.rees tv@ .depending Mms 15 and '16 kal Fig. 3 is a section on line 3-3of Fig. 2,

journal boXes and associated parts, with parts l wheel piece 11 to which are attached, what.

whichare connected together at their endsby atiebar 18, as is usual in such con-y structions.

Journal boxes 19, and21 are slidably mounted between the dependingarms of the pedestals 12, 13 yand k14, respectively.y `The car aXlesJare shownmore; or less diagrammatically at 200, 22 and 23,r and-the bearings j and wedges therefor are designated'generally y by thereference character 10;

The carl() is resilientlysupported from the l axles by suitable e ualizing bars 24' and 2,5. n Thesebars are'lsu stantially Ur-shape and f have their ends 26, 27 and 28,29, respectively, extending in opposite directions and supportedbythe journal boxes. Springs 31y arey u interposed between the equalizing bars and the car frame and are so arranged that thevr load will be equally distributed `among the three journal boxes.

kEqualizer bar 'seats yor blocks 32, 33 and 34 l arey provided for'supporting the yends 26, 2.7,

28 and 29 of the equalizer bars from the journal boxes. The blocks 32and 311' arek provided with ribs35 'for yengaging corresponding recesses in the outenends of the equalizer bars to prevent longitudinal kmovement of said bars. y l engages a groove formedin the meeting ends of thebars 24 and 25. n f

yIt is desirable'that the car framesbe supported at a uniform distance yabove the tracks in order that the platforms, couplers, brakes and the like be supported at a constantheight above the rails, and the'truck irainemain-y tained in a horizontal position. i f

The rib se of the @entrai block es! It is well known that/the treadportions of some of the wheels wear faster than others which will result in the equalizer bars rest-ing unevenly on their seats, thereby tending to es tilt the journal'boxes and considerably in-f creasing the friction between vthe' boxes and f the pedestals or` guidesf It frequently hap'- pens that some of the wheels of "a truck" must be replaced', Ity is `extremely" oliiicult,vr to the axles 200'are worn most, those on axleQ,r

next, and those on axle 23 the least, the equalizer seats will Vary in thickness in the same manner for lcompensating for this-wear, 'thaty is, the seat 32 willbe the thickest, the seat 33, next and the seat 34, the thinnest. By providing blocks of different thicknesses and properly utilizing the same asl occasion requires, the ends of the equalizer bars may be maintained at a v,substantially constant height abovel thetr'acks. ,A

In order thatthe weight may be properly distributedon the journals even though lthere kmay be tiltingofl-,the axles 4due ,to iuievenness in the road bedr and tracks; oitiltingof the equalizer bars on account .of the unequal wearing of the -wheel treads, or the like,` it is necessary,.to provide automatically Y adjustable bearings for the equalizerfbars. As shown, universahjoints or bearings are provided between-theequalizer seats and the journals.4 The journalbo'xes are each provided-at itsV upper portion with a convex surface340 in the form of a segment Aof a sphere which" is engaged by :a ACorresponding4 concave surface or segmental spherical recess 850 on the lower portion off the cooperating equalizer seat. This joint betweenftheequalizer sea-t and the `journalbox is in the nature of a universal or ball and socket joint althoughthe movement inqthe: diferentdirections. is extremely` limi-ted. ,j

lNhen it.

orderf toniaintain 4the ends of theequalizer seats ina horizontal plane, the axles are supportedso near the ends of the ,arms that the Vibration, buffs, andjerks to which thecar` A,subjected in use'will tenclto spread the pedestalfarms apart. In order toA avoid this diliiculty, suitable. means v are f provided for maintaining the application of thev forel and aft'presstue atsasubstantially constantdistance from the baseof thepedestal. j Y

Any suitable meansk may be. employed for thispurjfiose.` In-,theforniof the device selected to illustrate oneembodiment of this.

invention,the .equalizer bar` locks or'seats are l:Provided with yflanges on `their ends .for engaging thebase of the pedestal arms, wherebythe shocks tending lto spread the'arms willbe applied. to the ,same relati-ve'position on kthe ,pedestal` arms irrespective of the thickness .oftheequalizerbarseat. j

j becomes necessary to employ comparatively thick equalizer seat blocks, in

In the form shown, which is by way of example only, each block is provided with depending flanges 37 and 38 `atJvha-t for convenience will be termed its front and rear ends.' The journal boxes are provided with upstanding flanges 4l and 42 between which the blocks engage. These flanges prevent the blocks from moving longitudinally of the journal box, that is, transversely of the truck. The body portion 43 of each block or seat is provided with upstanding flanges 44 and 45 `extending longitudinally thereof, see Fig. 4.

These flanges are oppositely offset at their ends'tor forming the shoulders 46 and 47 and Vmay if desired be continued to form theretaining flanges 48 and 49, respectively.

These shoulders and flanges are adapted to engage the arms of' the pedestals whereby the force `ofthe shocks of the car will be transmitted to the pedestals adjacent to the base .of the arms.y The height ofthe flanges yaboveftl'ie seats ydoes not vary for ythe different blocks, consequently the force of the shocks-willbe applied at a substantially constant heightfabovethe rails or at the same distance fromy thebase of the arms, irrespec- ,tiveof the thickness of tlie block, whereby the tendency of `the torce of Athese, shocks toA spread the pedestal arms will be reduced to a minimum.

Itis tlioughtfrom the foregoing taken in connection withgthe accompanying drawings that the construction and operation of my device willjbe apparent to those skilled in `the art, and that various changesjin size,

shape, proportion and details vof construc- -tionY may b e made without departing from the spirity and-scope `of. the appended claims.

claimas my invention:

1. In' a. truck for railway cars, ajournal box. having segmetal spherical surface on its upper fside, an equalizer bar seat having acorresponding recess for engaging said surface, said seat being provided with an upstanding projection thereon, and an equal- Vizer bar having a recessfor'engaging said projection.

f2. .An equalizer bar seat comprising a body portion having a segmentalspherical recess in its under side and having` flanges on its front and rear portions, said flanges extending below said body portion.

3. An equalizer bar seat comprising a body portion having a journal box engaging surface andpedestal engaging 'flanges extending a substantial distance above said journal box .engaging surface.

4. inV combination, a railway truck comprising frena-rear and intermediate wheels at one side of said truck,;sai'd wheels having tires of different thicknesses, a journal box `for eachY wheel, an equalizing bar between the front, andinterinediate wheels and one between the rear andintermediate wheels, a removable seat ,for supporting the ends of said 15 IVAR A. HANDEL. 

